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1. 发明授权

US07247020B2 Drill set for dental screw implant fixture with self-tap 失效
标题翻译：用于牙科螺钉植入物夹具的自动攻丝机
公开(公告)号：US07247020B2
公开(公告)日：2007-07-24
申请号：US10653591
申请日：2003-09-03
申请人： Masashi Takahashi , Yataro Komiyama , Takao Okada , Norio Kojima
发明人： Masashi Takahashi , Yataro Komiyama , Takao Okada , Norio Kojima
IPC分类号： A61C3/02
CPC分类号： A61B17/1673 , A61C8/0022 , A61C8/0089
摘要： A drill set for adjusting an implant hole for a self-tap dental screw implant fixture comprises with a diameter d2 at the point of a cutting blade equivalent to a diameter D3 of the tip end of the fixture, a diameter d1 at the back end of the blade equivalent to the maximum root diameter of a first male screw 1e or smaller, and a length l1 of the blade larger than the entire length L1 of the fixture 1, and the second drill 3 with a diameter d5 at the point of a tapered tip end cutting blade 3b equivalent to the diameter D3, and a diameter d3 at the back end of a tapered back end cutting blade 3a equivalent to the maximum root diameter of the first male screw 1e and smaller than the maximum crest diameter thereof, both the blades 3a, 3b forming two-step taper shape.
摘要翻译：用于调整自攻牙螺钉植入物夹具的植入孔的钻具组件包括在等于直径D 3的切割刀片的点处具有直径d 2 2 < 在叶片的后端处的直径d 1> 1等于第一外螺纹螺钉的最大根直径1e或更小，长度l 1 大于整个长度L 1 1的固定装置1的第二钻头3和锥形尖端点处的直径d 5的第二钻头3 末端切割刀片3b相当于直径D 3 3，并且锥形后端切割刀片3的后端处的直径d 3 3等于最大根直径的第一外螺纹螺钉1e并小于其最大波峰直径，两个叶片3a，3b形成两级锥形。

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